﻿
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<!-- saved from url=(0014)about:internet -->
<html xmlns:msxsl="urn:schemas-microsoft-com:xslt" xmlns:mssdk="winsdk" xmlns:script="urn:script" xmlns:build="urn:build" xmlns:MSHelp="http://msdn.microsoft.com/mshelp">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<meta name="Description" content="Types"/>
<meta name="MSHAttr" content="PreferredSiteName:MSDN"/>
<meta name="MSHAttr" content="PreferredLib:/library/windows/hardware"/>
<title>Types</title>

<meta name="MS-HAID" content="Engine_DG_20e559a0-525c-4e47-ba69-b70d3576e059.xml"/>


<link rel="STYLESHEET" type="text/css" HREF="../common/backsdk4.css"/>





<style>
html,div { margin: 0; padding: 0;}

body {
	padding: 0px;
	margin: 0px;
	overflow: auto;
	height: 100%;
}

#winchm_template_button{
	float: right;
	width: 93px;
	top: 7px;
	position: relative;
	text-align: right;
	right: 5px;
	height: auto;
}

#winchm_template_top{
	padding: 0px;
	margin: 0px;
	border-bottom: 1px solid #9B9B9B;
	background-color: #B1CEFE;
}

#winchm_template_navigation{
	margin: 0px;
	padding-top: 7px;
	padding-left: 7px;
	padding-bottom: 3px;
	padding-right: 0px;
	font-size: 8.5pt;
	font-family: Arial, Helvetica, sans-serif;
	font-weight: normal;
	color: #585858;
}

#winchm_template_title{
	margin: 0px;
	padding-top: 4px;
	padding-left: 7px;
	padding-bottom: 7px;
	padding-right: 0px;
	font-size: 18px; 
	font-family: Verdana, Geneva, sans-serif;
	color: #363636;
}

#winchm_template_content{
	margin-top: 20px;
	margin-left: 15px;
	margin-bottom: 20px;
	margin-right: 15px;
	width: auto  !important;
	width: 100%;
}

#winchm_template_footer{
	border-width: 1px;
	border-color: #B1CEFE;
	border-top-style: solid;
	margin-top: 15px;
	margin-left: 15px;
	margin-bottom: 20px;
	margin-right: 15px;
	padding-top: 7px;
	padding-left: 0px;
	padding-bottom: 0px;
	padding-right: 0px;
	font-family: arial, helvetica, sans-serif;
	font-size: 8.5pt;
	color: #696969;
	width: auto;
	text-align: left;
}


#winchm_template_container{
	margin: 0px;
	padding: 0px;
	position: static;
	padding-bottom: 3px;
	overflow: auto;
	background-color: #FFFFFF;
}


@media print
{
#winchm_template_container{
	position: static;	
	margin: 0px;
	padding: 5px;
	
	width: auto;
	height: auto;
	overflow: auto;
}
#winchm_template_button{
visibility:hidden;
}
}

#winchm_template_navigation A:link	{text-decoration: none; color:#004080}
#winchm_template_navigation A:visited  {text-decoration: none; color: #004080}
#winchm_template_navigation A:active {text-decoration: none; color: #004080 }
#winchm_template_navigation A:hover {text-decoration: none;color: #0080FF}

A:link	{text-decoration: underline; color:#0033CC}
A:visited  {text-decoration: underline; color: #0033CC}
A:active {text-decoration: underline; color: #0033CC }
A:hover {text-decoration: underline;color: #FF0000;}
</style>
<script type="text/javascript">
function isMobile(){
Agent = window.navigator.userAgent;
if (Agent.indexOf("iPhone")>=1 || Agent.indexOf("iPad")>=1 || Agent.indexOf("iPod")>=1 || Agent.indexOf("Android")>=1){
return true;
}else{
return false;	
}

}
function d_onresize(){
if (window.navigator.userAgent.indexOf("MSIE")>=1){
document.getElementById('winchm_template_container').style.pixelWidth = document.body.offsetWidth - 3;
document.getElementById('winchm_template_container').style.pixelHeight = document.body.offsetHeight - document.getElementById('winchm_template_top').offsetHeight - 4;
}
document.getElementById('winchm_template_container').style.top = document.getElementById('winchm_template_top').offsetHeight + 'px';
}

function d_onbeforeprint(){
document.getElementById('winchm_template_container').style.width = 'auto';
document.getElementById('winchm_template_container').style.height = 'auto';
}

function d_onafterprint(){
d_onresize();
}

if(!isMobile()){

window.onload = d_onresize;
window.onresize = d_onresize;
window.onbeforeprint = d_onbeforeprint;
window.onafterprint = d_onafterprint;

document.write("<style>\n");
document.write("body {overflow: hidden;}\n");
document.write("#winchm_template_container {position: absolute;overflow: auto;top : 0px;right: 0px;bottom: 0px;left: 0px;}\n");
document.write("</style>\n");
}

</script>
</head>
<body><script language="JavaScript" type="text/JavaScript">
function syn(){
if(parent.nav.tree){
 if(parent.nav.tree.loaded){
  parent.nav.tree.selectNode(224);
 }else{
  setTimeout("syn()",500);
}
  }else{
  setTimeout("syn()",500);
  }}
if(parent!=self){
  setTimeout("syn()",100);
}else{
  parent.location.href = "../../index.htm?page=debugger/types.htm";
}
originalOnload = window.onload;
if(originalOnload==null){
window.onload = function(){parent.contentLoaded = true;};
}else{
window.onload = function(){originalOnload();parent.contentLoaded = true;};
}
</script> 


<div id="winchm_template_top">
	<div id="winchm_template_button"><A href="modules.htm" title="Previous topic"><img id="winchm_template_prev" alt="Previous topic" src="../template2/btn_prev_n.gif" border="0"></a><A href="scopes_and_symbol_groups.htm" title="Next topic"><img id="winchm_template_next" alt="Next topic" src="../template2/btn_next_n.gif" border="0"></a></div>
	<div id="winchm_template_navigation">Help &gt; 
<A href="introduction6.htm">Debugging Tools for Windows (WinDbg, KD, CDB, NTSD)</A> &gt; <A href="debugging_resources.htm">Debugging Resources</A> &gt; <A href="debugger_engine_and_extension_apis.htm">Debugger Engine and Extension APIs</A> &gt; <A href="using_the_debugger_engine_api.htm">Using the Debugger Engine API</A> &gt; <A href="debugger_engine_api_overview.htm">Debugger Engine API Overview</A> &gt; <A href="using_symbols.htm">Using Symbols</A> &gt; </div>
	<div id="winchm_template_title">Types</div>
</div>
<div id="winchm_template_container">
	<div id="winchm_template_content"><div id="mainSection"><p>Type information from a module's symbol file is identified by two pieces of information:  a type ID and the base address of the module to which the type belongs.  The following methods can be used to find a type ID:</p>
<ul>
<li>
<p><a href="#Bookmark656"><b>GetTypeId</b></a> returns the type ID for a given type name.</p>
</li>
<li>
<p><a href="#Bookmark655"><b>GetSymbolTypeId</b></a> returns the type ID for the type of a symbol with the given name.</p>
</li>
<li>
<p><a href="#Bookmark646"><b>GetOffsetTypeId</b></a> returns the type ID for the symbol found at the given location.</p>
</li>
</ul>
<p>The name and size of a type are returned by <a href="#Bookmark657"><b>GetTypeName</b></a> and <a href="#Bookmark658"><b>GetTypeSize</b></a>, respectively.</p>
<p>The following convenience methods can be used for reading and writing typed data in the target's physical and virtual memory:</p>
<dl>
<dd>
<p><a href="#Bookmark661"><b>ReadTypedDataPhysical</b></a></p>
</dd>
<dd>
<p><a href="#Bookmark672"><b>WriteTypedDataPhysical</b></a></p>
</dd>
<dd>
<p><a href="#Bookmark662"><b>ReadTypedDataVirtual</b></a></p>
</dd>
<dd>
<p><a href="#Bookmark673"><b>WriteTypedDataVirtual</b></a></p>
</dd>
</dl>
<h3><a id="printing_typed_data"></a><a id="PRINTING_TYPED_DATA"></a>Printing Typed Data</h3>
<p>To format typed data and send it to the output callbacks, use <a href="#Bookmark659"><i>OutputTypedDataPhysical</i></a> and <a href="#Bookmark660"><i>OutputTypedDataVirtual</i></a> for data in the target's physical and virtual memory respectively.</p>
<p>The type options described in <a href="#Bookmark905"><b>DEBUG_TYPEOPTS_XXX</b></a> affect how the engine formats typed data before sending it to the output callbacks.</p>
<p>The type options may be turned on by using <a href="#Bookmark675"><b>AddTypeOptions</b></a>, and turned off by using <a href="#Bookmark681"><b>RemoveTypeOptions</b></a>.</p>
<p><a href="#Bookmark680"><b>GetTypeOptions</b></a> returns the current type options.  To set all the type options at once, use <a href="#Bookmark682"><b>SetTypeOptions</b></a>.</p>
<h3><a id="interpreting_raw_data_using_type_information"></a><a id="INTERPRETING_RAW_DATA_USING_TYPE_INFORMATION"></a>Interpreting Raw Data Using Type Information</h3>
<p>The debugger engine API supports interpreting typed data.  This provides a way to walk object hierarchies on the target, including finding members of structures, dereferencing pointers, and locating array elements.</p>
<p>Typed data is described by instances of the <a href="#Bookmark904"><b>DEBUG_TYPED_DATA</b></a> structure and represents regions of memory on the target cast to a particular type.  The <a href="#Bookmark264"><b>DEBUG_REQUEST_EXT_TYPED_DATA_ANSI</b></a><b>Request</b> operation is used to manipulate these instances.  They can be initialized to the result of expressions or by casting regions of memory to a specified type.  For a list of all the sub-operations that the DEBUG_REQUEST_EXT_TYPED_DATA_ANSI <b>Request</b> operation supports, see <a href="#Bookmark907"><b>EXT_TDOP</b></a>.</p>
<h3><a id="additional_information"></a><a id="ADDITIONAL_INFORMATION"></a>Additional Information</h3>
<p>For details on output callbacks, see <a href="#Bookmark209">Input and Output</a>.</p></div></div>	
	<div id="winchm_template_footer">Copyright &copy; 2019. All rights 
reserved. (To change the copyright info, just edit it in template.)</div>
</div>

</body>
</html>
